N_A表示阿伏加德罗常数，下列说法不正确的是[ ]

A. 10 g重水(D₂O)中含有5N_A个中子

B. N₆₀分子中每个N原子均达到8电子稳定结构，则28 g N₆₀分子中含有共用电子对3N_A个

C. 标准状况下，15 g NO和16 g O₂混合气体的体积约为22.4L

D. 64 g CaC₂晶体中所含阴离子总个数为N_A

Lucy has ______ all of the goals she set for herself in high school and is ready for new challenges at university. [ ]

A. acquired

B. finished

C. concluded

D. achieved